【摘要】 青岛地区酸雨成因研究表明，青岛市近代工业发展排放大量致酸物质、海洋上天然排放的二甲基硫是重要的原因；青岛地区边界层风场和温度场的特殊规律是形成酸雨的另一个重要原因；江淮气旋和黄淮气旋大型天气形势起了辅助作用。本文着重分析研究了１９９３年７月２３日一次典型酸雨的实际例子，证明了上述论点。更多还原

【Abstract】 This paper is a part of the “Studies on characteristics of acidrain subsidence and its prevention,”adout the weather feature in Qingdao area. It lays emphasis on both boundary layer pollution meteorological characters and acid causing substance sources.It points out that boundary layer has special nature in Qingdao.Within 200m height near the ground,the speed of wind,which is usually southeast in direction from sea ,is lower;and the temperature stratification is unstable.As the height increases,the wind speed reaches maximum at 400～500m high and the temperature stratification is very stable.This meteorological structure of the boundary layer is disadvantageous to diffusion and transference of pollutans near the ground.Recently,the emission of SO x and NO x has increased.In addition,Dimethylsulfide(DMS) is emitted naturally from offshore to Qingdao area,especially under the conditions of Jiang Huai cyclone and Huang Huai cyclone in summer and autumn;and there is southwest air current in high altitude,carriying part of acidcausing substances from outside across Qingdao with air current mixing between upper and lower layers,so acidrain will easily appear in rainy weather.This paper takes the weather of July 23,1993 and proves the above points.更多还原